[vincnetas]

such strange unit of measurement. cubic feet of space. especially for civilian transport when most of the time no one uses that space. i mean most of the time its one person per car without any baggage. what's important is weight of the car. and i bet suv is heavier than sedans.

[bluGill]

There are multiple variables, claiming weight is important is wrong.

Volume is important because the more volume the more space there is for batteries.

Aerodynamics is important because at common highway speeds this is the dominate energy cost. This is a factor that goes up by the square of speed, so at low speeds it doesn't matter but at high speeds it does.

Weight is least important because it has a linear change and is a small factor in efficiency.

There are real safety concerns with SUVs, but their larger size means there is more space for batteries and so they can overall go farther then a Sedan in normal driving despite the other costs.